Aptitude - Problems on Trains - Discussion

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Q.

A train travelling at a speed of 75 mph enters a tunnel 3 1/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges ?  .                          
A. 2.5 min B. 3 min
C. 3.2 min D. 3.5 min

Answer: Option B
Explaination:

 


Discussion

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